/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
using System;
using Lucene.Net.Analysis.Tokenattributes;
using Lucene.Net.Index;
namespace Lucene.Net.Analysis.Payloads
{
///
/// Assigns a payload to a token based on the
///
public class NumericPayloadTokenFilter : TokenFilter
{
private String typeMatch;
private Payload thePayload;
private IPayloadAttribute payloadAtt;
private ITypeAttribute typeAtt;
public NumericPayloadTokenFilter(TokenStream input, float payload, String typeMatch)
: base(input)
{
//Need to encode the payload
thePayload = new Payload(PayloadHelper.EncodeFloat(payload));
this.typeMatch = typeMatch;
payloadAtt = AddAttribute();
typeAtt = AddAttribute();
}
public sealed override bool IncrementToken()
{
if (input.IncrementToken())
{
if (typeAtt.Type.Equals(typeMatch))
payloadAtt.Payload = thePayload;
return true;
}
else
{
return false;
}
}
}
}